German traffic sign 551-21 is a lane merge board indicating how traffic lanes are arranged, specifically showing one lane merging into two continuing lanes. You’ll typically see this sign in areas with lane closures, roadworks, or lane shifts, particularly on motorways or multi-lane roads. It’s crucial to recognise this setup early, adjust your speed, and select the appropriate lane before reaching the merge point to ensure safe traffic flow and avoid confusion during your theory test.
This German Traffic Control Board sign, 551-21, illustrates how lanes merge, requiring drivers to anticipate lane changes and adapt speed. Understanding this road sign meaning is crucial for safe navigation, especially in areas with lane closures or construction, making it a key topic for your theory test revision.
German road sign 551-21, officially designated "Zusammenführungstafel - an einmündender Strecke - 1-streifig einmündend plus 2-streifig durchgehend", belongs to the traffic control boards group. It shows how lanes are arranged, shifted, narrowed, separated, or merged, usually before a roadworks or high-speed lane-change area. You may see it in motorways, multilane roads, temporary roadworks, lane closures, lane shifts, merge areas, and construction-stage traffic management, depending on how the road authority has arranged the location. An end version marks the point where that specific rule, facility, or marked section ceases to apply. The practical meaning is not just the symbol itself, but the driving decision it triggers: adjust speed, position, priority, route choice, stopping behaviour, or attention before the situation becomes urgent. For learners, the key skill is translating the arrows into early lane choice rather than reacting at the last moment. Always combine the sign with road markings, traffic lights, police instructions, and any supplementary plates at the same location.
German road sign 551-21 means "Lane merge board - an einmündender Strecke - 1-lane einmündend plus 2-lane continuing" and is officially listed as "Zusammenführungstafel - an einmündender Strecke - 1-streifig einmündend plus 2-streifig durchgehend". In practice, it tells drivers to recognise the situation early, adapt before reaching the controlled area, and check whether markings or supplementary plates change how the rule applies.
Get clear, practical answers to the most common questions about the 551-21 - Lane merge board - an einmündender Strecke - 1-lane einmündend plus 2-lane continuing road sign. Learn how the sign works, what rules it represents, and how it affects real driving situations. This FAQ strengthens your understanding and supports accurate decision making for the German driving theory exam in Germany.
Sign 551-21 signifies that a single lane will merge into a road that continues with two lanes. It visually communicates the upcoming lane configuration, prompting drivers to prepare for a merge and to select the correct lane early.
This sign is commonly found in temporary traffic management situations such as roadworks, lane closures, or lane shifts on high-speed roads like motorways or multi-lane urban routes. It helps guide traffic through these altered lane arrangements.
Upon seeing sign 551-21, you should recognise the impending merge. It's important to reduce your speed, observe the road markings and any supplementary signs, and choose the correct lane well in advance of the merge point. Avoid waiting until the last moment to change lanes.
A common trap is reacting too late. Learners might assume they can continue in their current lane until the very end of the taper, but the sign and accompanying markings require early lane selection. Another trap is not giving adequate priority or space to vehicles already in the lane you are merging into, or to those in the other continuing lane.
While both signs manage lane configurations, a lane merge board specifically shows how lanes combine or change number, like 551-21 illustrating a 1-lane merge into a 2-lane continuing road. A general lane closure sign might simply indicate that a lane ahead is blocked, without specifying the subsequent lane arrangement as clearly.
A clear reference image of the 551-21 - Lane merge board - an einmündender Strecke - 1-lane einmündend plus 2-lane continuing road sign used in Germany.
The 551-21 - Lane merge board - an einmündender Strecke - 1-lane einmündend plus 2-lane continuing road sign may also be known by these alternative names or terms.
The 551-21 - Lane merge board - an einmündender Strecke - 1-lane einmündend plus 2-lane continuing road sign is part of the German Traffic Control Boards category, which groups together signs with similar rules and functions.
Comparing closely related road signs, like this Lane merge board, sharpens your recognition skills and reduces errors on your German theory test. Effective traffic sign comparison is key to mastering the complexities of German road rules and ensuring exam readiness.
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Deepen your understanding of specific road sign categories or test your knowledge with practice questions. Explore our themed sign groups for targeted study or jump into quizzes to reinforce your recognition skills for the official German theory exam.
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